Punching-machine.



No. 842,729. PATENTED JAN. 29, 19 07.

A. VERNET. I

PUNGHING MACHINE.

APPLICATION IILED'NOY. s. 1906.

4 SHEETS-SHEET 1.

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No. 842,729. I 'PATENTE'D JAN. 29, 1907.

A. VERNET.

PUNGHING MACHINE.

nrmcnrou FILED NOV. 6, 1906.

4 SHEETS-SHEET 2.

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PA ENTED JAN. 29; 1907.

A. VERNET. PUNGHING MACHINE.

4 SHEETS-SHEET s.

APPLICATION FILED NOV- 6, 1906.

A. VBRNET. PUNGHING MACHINE.

APPLICATION FILED NOV. 6, 1906.

I I (fiz /5a) 91726 2 THE "cams PzrsRs co-. WASHINGTON. n. c.

PATENTBD JAN. 29, 1907.

UNITED STATES PATENT." OFFICE.

ARTHUR VERNET, OF DIJON, FRANCE.

PUNCHlNG-MACHINE.

Specification ofLette -s Patent.

- ,IfatentedJan. 29, 1907.

Application filed November 6, 1 9 O6.- Serial No."34=2,290.

To all whom, it natty concern.-

Be it known that I, ARTHUR VERNET, en-, gineer, a citizen of the French Republic, residing at Dijon, Department of Cote dOr, France, and having post-oflice address d Rue. de Colmar, in the said city, have invented-.-

certain new and useful Improvements in Punching-Machines, of which the. following is, a specification.

, diesin punching-machines,andin multipleaction punchingand shearingnlachines op-.

I erated by hand or power. This arrangement permits of changing the punch and the corresponding die by a simple rotation,.-while at the same time leaving free access for the punching.

In accompanying drawings, Figure-1.rep-,-

resents a verticalsection through the device on the line A A of Fig. 3.

. neath view of the upper part of the machine on the section-line B B of Fig. 1.' 'This figure shows the punch-carrying arms. -Fig. 3

is. a horizontal. section on the line B B of Fig. 1, showing the disposition of the frame and of one of the die-carrying arms, the other arms a 7 shows a detail. I Fig. 6 is a vertical section of. gamodified form of the device. Fig. 7 is a 10, showing anothermodification.

rying the punches and dies.

underneath view of the piece-carrying the de- 1 vicewhich puts in motion the punches.

' Figs. 9 and 10 represent in elevation and in side view a modification of the ends of the.

being broken away. Fig. 4 is a fronteleva tion, partly in section, of a punch-holder with. the corresponding die-holder.- Fig. 5

correspondingplan view oftthe cylindercararms carrying the punches and dies. Figs.

11 and 12 are analogous views to Figs. 9 and Fig. 18

. is a plan view of this last. modification. Fig.

14 is a back view of the same. Fig. 15 is a vertical section of a slide through line C C of. Fig. 16,v and Fig. 16 is a transverse section of. a slide through line DD of Fig. 15.

The machine comprises a, base-plate 1 forming an upright around which a cylinder tate. At the upper part of the upright of 2, provided at its lower partwith arms13, carrying the dies, and at its upper part :with

arms-4, carrying the punches, isv able to ro- I the box-plate 1 there is fixed, by means of a key 5, another cylinder 6,. which forms the upper part of the frame and in whichthere moves a slide-block 7, operating the punch:

This invention has for its object improvements in the disposition of the punches'and Fig. 2 is an undere;

Fig. 8 is an..-

following the. axleof the ,pivotofthe' maholders. wThis slide-blockis actuatedbyany -.appro.priate means.-..Eachof, the; punchcarrying arms .4 of the rotatablecylinder 2 terminates in a.-.fork.z-..The number of. these arms. should not exceed five in order. .to .give free .accessandgwide clearancefor the punching.- In this .forkthere areengagedtwo or a .The puncheslO, fixed to. the punchehold- .ers, may be. of any. appropriate kind, as may alsothe dies 11., corresponding tothem.

I 12 designates a set-screw of. he;; puneh-' holders, and 1-3.-a-.plate fixed in, front of. the fork of the arms 4 for retaining thepunchholders .;This,p1ate 13 is. fixed by means of screws 14.

'-. -The arms.,3.-carry attheir extremitiesv the dies 11.; These are-held by,.claws, 15,-fiXed by means of screws 16. andl'regulated by screws 17. ..Th,e;punch -holders are provided at'the upper-part with. a square-headedscrew 18, intended to engage in .the=fork of. the

;.,slide.-block .7 in order toppermit of lifting them;v The. punch; and die .that itisdesired to, employ are brought, .beneaththe-SIide- .block 7 in such ,amanner that the: square- .headed screw 18 of the punchrholderengages in the recess-formed atthe lower part of the slide-block.

.In the .back part-6 of the frame ,there is formedhascrew-threadedxhole. ingwhich a lock-screw 19.- engages. This screw. bears against a wedge 20 and is .operatedby means of .a handle 21.; Thisiscrew serves to, mo-

.mentarily fix theposition ofthe -.rotatable -cylinder.2 and at the same time permits of the partial. revolution intov .traction of the reaction-.upon the frame ,1 in the-punching operation. In fact, the reaction of the punching .operationand the reaction of thei-lockscrew 19, both forcesbeingapplied upon the cylinder. 6,. have as .a. result. a. force -directl y china flexion. In order to obtain the same result, the

This column isjso, not subjected to frame of the. punching-machine. may be modified as vit-is shown on Figsp6, 7, and 8.

. The base-plategl of the punching-machine is providedywith acolumn. around which is able to rotate a'cylinder 2, provided;.,with arms 3,

carrying the dies, and arms 4, carrying the punchesfour arms of each species, for example. At the upper part of the column there is fixed a piece 6, forming the upper part of the frame and in which there moves the block operating the punch-holders. The piece 6 carries under itself a T-shaped circular key 22, which moves without play in a like-shaped groove 23, made on the upper part of the cylinder 2. In order to permit the setting, a part 24 of the internal edge of this groove is left out. This part 24 may after setting be closed with an adjusted and bolted piece in order to provide the groove with a continuous circular internal edge. Moreover, the back part 25 of the piece 6 lays on the cylinder 2. WVith such a device the central column is quite delivered from fiexion. It must be remarked that the key 22 may be a part of the cylinder 2, while the groove 23 may be made in the piece 6.

In the powerful machines the point of catching instead of being situated between the points of application of the traction and of the compression may be situated before the point of application of the traction, as it is shown in dotted lines in Fig. 6.

Figs. 9, 10, 11 and 12 show modifications of the parts carrying the dies. The dieholders 11 can be fast and easily set up the arm 23 by means of a half-clamp 26, maintained upon the die-holder by the nut 27. The tightening is very strong, owing to the stocks 28, carried by the arm 3, against which tightens corresponding parts of the clamp 26. The exact position of the die-holders is secured by means of a piece 29, engaged into a corresponding hole made upon the arm 3. As it is shown in Fig. 9, the position of the dies can easily be ordered by means of a claw 30, provided with projections 31. In some cases the clamp 26 may have a bolt 32, Fig. 12, which by securing against the lower part of the arm 4 makes the whole of the two arms 3 and 4 very much stronger.

Figs. 9 and 10 show modifications of the parts carrying the unches. The end of the arm 4 is plane, an the punch-holders 8 are maintained against itby means of the piece 13, which has the same form that is shown in Fig. 13 and which is secured against the arm 4 by means of the nuts 14. The punch-holders move vertically in slides 33, which are seen in elevation view, Figs. 9 and 11, in side view, Figs. 10 and 12, in plan view, Fig. 13, and in section, Figs. 15 and 16. With such a disposition every punch may be acted successively by means of the block 7 or simultaneously, as it is shown in Fig. 11. In this case the lower part of the block 7 is enlarged in order to rest u on all the punch-holders, and the punch-ho ders may be separated by a distance-piece 35 of variable dimensions.

Instead of using the described means for maintaining the pimch-holders against the arm 4 it is possible to set them in a kind of box 13 13, as it is shown, Figs. 11, 12, 13,and 14. The back side 13 of this box is provided with crossed projections 34 34, which enter in corresponding holes made on the arm 4.

Having thus described and ascertained the nature of my invention and in what manner the same may be performed, I declare that what I claim is- 1. A punching-machine in which tools are carried upon arms forming part of a cylinder capable of turning around the vertical axle of the machine, means being provided for securing the cylinder in position and for avoiding the flection of the axle during the punch working, each upper arm of said cylinder carrying several punches, each lower arm of said cylinder being provided with means for facilitating taking up, taking down and regulating of the tools, substantially as described.

2. A punching-machine, in which tools are carried upon arms forming part of a cylinder capable of turning around the vertical axle of the machine, each upper arm of said cylinder carrying several punch-holders, each punchholder being provided with one punch, these punch-holders being of a square section in order to permit an easily grouping of them at the end of said arm, the passage from one punch to the other being effected by partial rotation of the cylinder, substantially as described.

3. A punching-machine in which tools are carried upon arms forming part of a cylinder capable of turning around the vertical axle of the machine, a screw being engaged in a threaded hole formed in the upper part of the frame of the machine and bearing upon said cylinder, in order to fix the position of said cylinder and to avoid flection of the vertical axle, substantially as described.

4. A punching-machine in which tools are carried upon a cylinder capable of rotating around the axle of the machine, this cylinder being provided with a circular T-shaped groove in which engages a like-shaped key forming part of the upper part of the frame of the machine, substantially as described.

5. In a punching-machine, a base having an axis, a rotatable cylinder mounted on the axis and having a plurality of arms, punchholders carried by the arms, and means for spacing the same from each other.

6. In a punching-machine, a base having an upright forming an axis, a rotary cylinder mounted on said upright and having arms, one for supporting punch-holders, and the other dies, means for mounting and adjusting the punch-holders relative to each other, a secondary cylinder above the first-mentioned cylinder and having a sliding block for actuating the unch-holders, and means for momentarily xing the relative position of the cylinders.

7. In a punching-machine, a rotating cyl- In testimony whereof I have hereunto set inder having arms one for supporting punchmy hand in presence of tWo subscribing Witholders and the other for supporting the dies, nesses. spacer lneans for the punch-holders to Vary ARTHUR VERNET.

5 the relative distances to each other, and Witnesses:

means for mounting the punch-holders and l EMILE KLoTz, dies. 7 MAX DE RIVAUD. 

